Well, the Hijri date 15 Rabi Al Awwal 1440 corresponds to the Gregorian date Friday, 23 November 2018. This date lies in the third month of the Hijri year 1440 AH, which is Rabi Al-Awwal of 1440 AH. Both this Hijri and Gregorian date occur on the single day that is Friday without any doubt. The Arabic date 1440/03/15 is calculated using the Umm Al-Qura calendar and the sighting of the moon. One thing to remember is that this Arabic date may occur on different Gregorian date depending upon the region and country and obviously the moon.
If you are still not sure about the date then you can use our Arabic date converter.
The following is the conversion of the Gregorian date 23 November 2018 to its equivalent Arabic date.
The following is the conversion of the Arabic date 15 Rabi Al Awwal 1440 AH to its equivalent Gregorian date.
وَءَاخَرُونَ ٱعْتَرَفُوا۟ بِذُنُوبِهِمْ خَلَطُوا۟ عَمَلًۭا صَٰلِحًۭا وَءَاخَرَ سَيِّئًا عَسَى ٱللَّهُ أَن يَتُوبَ عَلَيْهِمْ ۚ إِنَّ ٱللَّهَ غَفُورٌۭ رَّحِيمٌ
And (there are) others who have acknowledged their faults. They mixed a righteous action with another that was bad. It may be that Allah will relent toward them. Lo! Allah is Forgiving, Merciful.
Surah At-Tawba(9:102)
Sahih al-Bukhari
Hajj (Pilgrimage)
Chapter: Whoever matted his head-hair on assuming Ihram
Narrated Ibn `Umar:
Hafsa said, "O Allah's Messenger (ﷺ)! What is wrong with the people; they finished their Ihram after performing `Umra, but you have not finished it after your `Umra?" He replied, "I matted my hair and have garlanded my Hadi. So, I cannot finish my Ihram till I slaughter (my Hadi). "
Sahih al-Bukhari 1725